Crypto-Watermarking of Images based on the Permutation on Z/pZ and the Wavelet Decompositions of Legall 5/3

Abstract

In this work, we are interested in the insertion of the watermarking of digital images in the frequency domain. The algorithm proposed uses the transformed into wavelet Legall 5/3 on an image encrypted by swapping on the Z/pZ field, to perform the watermarking. By consequence, this introduces the concept of keys to the traditional methods of non-blind watermarking. The results of the application of this method on the fixed image (presented in the section: Application and results show well its performance.

Research on Painting Image Classification Based on Transfer Learning and Feature Fusion

“…Let h(n) and g(n) be signals with impulse response and use their high and low filters to sample filter signals and combine them to achieve wavelet transform [15]. h(n) and g(n) are defined as follows:…”